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Achi Rinaldi

Universitas Islam Negeri Raden Intan Lampung

Author-ID : 2539361

Religion Aerospace Engineering Arts Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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The Effectiveness of Learning Management Systems in Enhancing Student Learning Outcomes in Higher Education Supriadi, Supriadi; Pahrudin, Agus; Yuberti, Yuberti; Rinaldi, Achi
Jurnal Ilmiah Iqra' Vol 19, No 1 (2025)
Publisher : IAIN Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30984/jii.v19i1.3505

The rapid digital transformation in education has brought significant challenges and opportunities, particularly in integrating technology to improve learning outcomes. This study aims to analyze the effectiveness of Learning Management Systems (LMS) in enhancing student learning outcomes, focusing on the Education Management course. Using a quasi-experimental design, the research involved 18 students who underwent pre-test and post-test assessments. The results showed a significant improvement in learning outcomes, with the average post-test score (80.67) significantly higher than the pre-test score (54.89), supported by statistical analysis (sig. 0.000). The findings align with Al-Fraihat et al. (2020) and Sun et al. (2008), emphasizing the importance of LMS usability, content quality, and integration with active learning strategies. However, challenges such as the digital divide and lack of face-to-face interaction need addressing through equitable access to technology and hybrid learning models. The study concludes that LMS is an effective tool for digital learning transformation, recommending continuous content development, training, and periodic evaluation to maximize its potential.

ANALISIS VALIDITAS RELIABILITAS TINGKAT KESUKARAN DAN DAYA BEDA PADA BUTIR SOAL UJIAN AKHIR SEMESTER GANJIL MATA PELAJARAN MATEMATIKA KELAS XII IPS DI SMA NEGERI 12 BANDAR LAMPUNG TAHUN AJARAN 2014/2015 Susanto, Hery; Rinaldi, Achi; Novalia, Novalia
Al-Jabar: Jurnal Pendidikan Matematika Vol 6 No 2 (2015): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v6i2.50

This study aims to(1) determinethe items quality of odd semesterfinal examin social class XII mathematics subject academic year 2014/2015 in terms of validity, reliability, level of difficulty, and distinguishing power, (2) createa program shape for calculating validity, reliability, level of difficulty and distinguishing power. The researchused quantitative descriptive method and documentation technique. The datas consisted of 128 students’ answer sheetsin social class XII academic year 2014/2015. The datas were analyzed by using several formulas of validity, reliability, level of difficulty, distinguishing powerand the use of IBM SPSS Statistics22 software and anates V4 software. The results showed that 22 questions (55%) were valid and 18 questions (45%) were invalid. The reliability of items was quite good where the reliability coefficient value more than rtabel was 0.558 based on three formulas which were Anova Hoyt, Cronbach alpha and IBM SPSS Statistics 22. The difficulty level of items was not good because the items balances including easy, medium and difficult were not proportional, the proportional balance was 3-5-2 or 3-4-3. The distinguishing power of items showed that 1 item (2.50%) was very good, 9 items (22.50%) were good, 10 items (25%) were moderate, 14 items (35%) were less good and 6 items (15%) were bad. In addition to the above results, this study also resulted a program shape to facilitate the calculation of item analysis. The program calculations are the validity index analysis, reliability, level of difficulty and distinguishing power of test instrument.

Aplikasi Model Persamaan Struktural pada Program R (Studi Kasus Data Pengukuran Kecerdasan) Rinaldi, Achi
Al-Jabar: Jurnal Pendidikan Matematika Vol 6 No 1 (2015): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v6i1.56

Structural Equation Model (SEM) was known as powerfull and popular multivariate analysis technique. It provides a comprehensive method for the quantification and testing of theories. The ability of this model is to test model with multiple dependent that more powerfull than multiple regression, it’s also can make some simultaneously model in one form. Data was used from Holzinger and Swineford that measured intellegence in several indicator. This model was lack of form and performance that can be showed in value of Chi-square. Akaike Information Criterion (AIC) and Chi-square value for specificly in block “male” was less than “female”, so the result gave structural model for block male was better than female.

Sebaran Generalized Extreme Value (GEV) Dan Generalized Pareto (GP) untuk Pendugaan Curah Hujan Ekstrim di Wilayah DKI Jakarta Rinaldi, Achi
Al-Jabar: Jurnal Pendidikan Matematika Vol 7 No 1 (2016): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v7i1.137

Extreme event such as extreme rainfall have been analyzed and most concern for the country all around the world. There are two common distribution for extreme value which are Generalized Extreme Value distribution and Generalized Pareto distribution. These two distribution have shown good performace to estimate the parameter of extreme value. This research was aim to estimate parameter of extreme value using GEV distribution and GP distribution, and also to characterized effect of extreme event such as flood. The rainfall data was taken from BMKG for 5 location in DKI Jakarta. Both of distribution shown a good perfromance. The resut showed that Tanjung Priok station has biggest location parameter for GEV and also the biggest scale parameter for GP, that mean the biggest probability to take flood effect of the extreme rainfall.

Understanding of Mathematical Concepts in the Linear Equation with Two Variables: Impact of E-Learning and Blended Learning Using Google Classroom Huda, Syamsul; Firmansyah, Mu'min; Rinaldi, Achi; Suherman, Suherman; Sugiharta, Iip; Astuti, Dian Widi; Fatimah, Okis; Prasetiyo, Andika Eko
Al-Jabar: Jurnal Pendidikan Matematika Vol 10 No 2 (2019): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v10i2.5303

Students need an understanding of mathematical concepts provided by educators who have good skills. Educators must also maximize their teaching time so that it requires learning models such as e-learning and blended learning to meet the loss of teaching time due to other activities that must be done by the teacher besides teaching. This study aims to see the impact of blended learning and e-learning on the ability to understand mathematical concepts of students in the material of two-variable linear equations. The method used in this study is the quasi-experiment with the posttest only control design research. Technical analysis uses one way ANOVA. Based on the results of the study, Blended Learning and E-Learning influence understanding mathematical concepts in the two-variable linear equation material, so that it can be used as a knowledge given to students in understanding mathematical concepts.

Mathematical problem-solving abilities and reflective thinking abilities: The impact of the influence of eliciting activities models Hartati, Suci; Bilqis, Ratu Ayu; Rinaldi, Achi
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.6709

This study aims to determine the effect of the Model Eliciting Activities (MEAs) learning model to the mathematical problem-solving abilities and the mathematical reflective thinking skills. This research is a type of Quasi Experimental Design research. Data collection techniques in this study in the form of documentation and tests at the public school in Bandar Lampung with 30 students of experiment classes and 30 students of control classes. Data analysis techniques used are the normality and homogeneity test. Testing hypothesis in this study using the Multivariate Analysis of Variance (MANOVA) test. Based on the result of this study, the calculation of the MANOVA test, it was concluded that there was an influence of the Model Eliciting Activities (MEAs) to the mathematical problem-solving abilities and the mathematical reflective thinking skills. The application of the Model Eliciting Activities to the mathematical problem-solving abilities and the mathematical reflective thinking skills has a relatively high level of effectiveness.

Spatial Modeling for Poverty: The Comparison of Spatial Error Model and Geographic Weighted Regression Rinaldi, Achi; Susianto, Yuni; Santoso, Budi; Kusumaningtyas, Wahyu
Al-Jabar: Jurnal Pendidikan Matematika Vol 12 No 1 (2021): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v12i1.8671

This study aims to analyze poverty using spatial models. The researchers also compared the Spatial Error Model (SEM) and Geographically Weighted Regression (GWR). The comparison of the two models was based on the estimation evaluation criteria and the constructed spatial associations. Spatial regression is considered very appropriate to be used to model the relationship pattern between poverty and explanatory variables when the observed data has a spatial effect caused by the proximity between the observation areas. The spatial dependence of errors on observational data can be overcome using SEM, while the effect of heterogeneity of spatial variance can overcome using GWR.

Pengaruh Pembelajaran Berbatuan Geogebra terhadap Pemahaman Konsep Matematis ditinjau dari Gaya Kognitif Purwanti, Ramadhani Dewi; Pratiwi, Dona Dinda; Rinaldi, Achi
Al-Jabar: Jurnal Pendidikan Matematika Vol 7 No 1 (2016): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v7i1.9699

The purpose of this research is to know whether there is influence of learning model of Geogebra-assisted Discovery Learning to understanding mathematical concept, to know whether there is influence between learners who have cognitive style of FI and FD to understanding mathematical concept, to know whether there is interaction between learning of Discovery Learning Unity Geogebra with the cognitive style of learners towards the understanding of mathematical concepts. This research type is quasi experiment research, population in this research is all students of class VII of SMP Negeri 2 Bandar Lampung, sampling technique in this research use class random technique where class VII-8 as experiment class 1 with study of Discovery Learning assisted geogebra, Class VII-7 as a control class with Discovery Learning learning with Microsoft Power Point. Technique of data analysis in this research use two way Anova test with unequal cell. Based on the test results, the first hypothesis is indicated by the statistical price of 8,871, so that H0A is rejected with the conclusion that there is influence of Discovery Learning learning by geogebra toward the understanding of mathematical concept. For the second second hypothesis is shown with a statistical price of 5.23 , so H0B is rejected with the conclusion that there is an influence between learners who have cognitive style of FI and FD on the understanding of mathematical concepts. For the third hypothesis, it is shown by the statistical price of 1.05, so H0AB is accepted with no conclusion there is no interaction between the learning of Geogebra-assisted Discovery Learning with the cognitive style of learners towards the understanding of mathematical concepts.

Analysis of E-SPT and E-filing utilization on taxpayer compliance: A multiple regression approach Rinaldi, Achi; Devi, Yulistia; Salih, Dana Taha Mohammed
Al-Jabar: Jurnal Pendidikan Matematika Vol 15 No 1 (2024): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v15i1.23060

Background: Statistical data from Lampung Province indicate a steady annual increase in the number of taxpayers utilizing e-SPT (electronic tax return) and e-filing, particularly from 2019 to 2022.Aim: This study aims to analyze the effect of e-SPT usage on taxpayer compliance, investigate the impact of e-filing on taxpayer compliance, assess the combined effects of e-SPT and e-filing on taxpayer compliance, and understand taxpayer compliance within the framework of Islamic Economics.Method: Taxpayers from the Bandar Lampung Tax Office (KPP) were selected as respondents. A random sampling technique was employed to gather data from 100 participants. The data were analyzed using multiple linear regression analysis with SPSS.Results: The findings reveal that the convenience, effectiveness, and satisfaction derived from using e-SPT and e-filing, along with an analysis of Annual Tax Returns, significantly influence taxpayer compliance. The use of e-SPT alone has a notable impact on compliance, as does the use of e-filing. Furthermore, the combined usage of e-SPT and e-filing has a significant collective impact on taxpayer compliance.Conclusion: The study concludes that both e-SPT and e-filing are critical in enhancing taxpayer compliance, with their combined application having a more substantial effect. These findings also offer insights into taxpayer compliance from the perspective of Islamic Economics, emphasizing the role of modern tax administration tools in promoting compliance.

Lembar Kerja Peserta Didik Berbasis Kegiatan Transaksi Kewirausahaan Materi Sistem Persamaan Linier Dua Variabel Supardi, Novitasari; Rinaldi, Achi; Rakhmawati M, Rosida
Desimal: Jurnal Matematika Vol. 1 No. 1 (2018): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v1i1.2012

This study aims to produce products in the form of LKPD SPLDV material, and Know the response of educators to LKPD on SPLDV material. The method of this research is Research and Development (R & D) based on ADDIE model Stages performed only from stage 1 to stage 5 that is from analysis, design, development, implementation, evaluation. The result of the material expert test on the content quality aspect obtained the average score of 3.67 with very good criteria, on the aspect of the accuracy of the scope obtained the average score of 3,167 with good criteria. Expert test media on LKPD size aspect got the average score 4 very interesting, skin design aspect LKPD got average score 3,66 with the good criterion, design aspect of LKPD got average score 3,4167 with good criterion. Expert tests obtained an average score of 3.22 with good criteria. In the small group trial of students in the attractiveness, test obtained an average score of 3.57 with interesting criteria, large group trials of students in the attractiveness test obtained an average score of 3.56 with interesting criteria. From some of the above data, it can be concluded that LKPD developed into good criteria and get a good response for the learners.

Co-Authors Abi Fadila Agus Pahrudin Ahmad Fauzan Ahmad Sodiq, Ahmad Ali Murtadho Ali Murtadho Ali Murtadho Andika Eko Prasetiyo Andika Eko Prasetiyo, Andika Eko Anggraini, Rekasepti Ansely, Ghina Apriyani, Hikma Arfani Manda Tama Asri, Elsa Widya Bilqis, Ratu Ayu Budi Santoso Deden Makbuloh Delima Istiani Desi Vitona Dian Anggraini Dian Widi Astuti Dian Widi Astuti, Budi Irawan Prima Putra, Dian Widi Astuti, Diana Yonika Sari Dinda Permata Sari Dona Dinda Pratiwi Donald Harris Sihotang Dwi Budi Santoso Dyah Arum Puspanaja Elfrida Ratnawati Fatimah, Okis Firmansyah, Mu'min Fitria Adelita Fredi Ganda Putra Gusti Ayu Farah Nabilla Hasan, Masykur Hery Susanto Hery Susanto Husnilawati Iip Sugiharta Ikhtiar Cahya Ajir Ikram Mawar Sari Ilham Fatoni Ima Damayanti Inka Mayelda Putri Kenny Candra Pradana Kiki Ambar Sari KOMARUDIN Laila Puspita Laila Puspita, Laila Lusi Anggraini M. Izzad Khairi Yazdi Maharani Fitriana Melinda, Selva Mu'min Firmansyah Muhamad Syazali Muhammad Akmansyah Muhammad Ilham Jaya Kesuma Mukhtar, Sajida Mutia Mutia Muzekki Nanang Supriadi Novalia Novalia Novalia Novalia Novia Dwi Rahmawati Novitasari Supardi Nurhasanah Leni Nurjanah Nurjanah Nurrasiah, Nurrasiah Okis Fatimah Pranata, Meli R. Suyanto Rahmawati, Yasinta Ramadhani Dewi Purwanti Ramadhani Dewi Purwanti, Ramadhani Dewi Rany Widyastuti Rany Widyastuti Ratu Ayu Bilqis Rekasepti Anggraini Reni Novilia Riska Fitriana Riyanto Adi Kusumah Riyanto Riyanto, Riyanto Adi Kusumah Rizka Pitri Rizki Wahyu Yunian Putra Roby Firdian Ruswanda Rosida Rakhmawati Safitri, Julia Dwi Sakti Aktarim Salih, Dana Taha Mohammed Sari, Dinda Permata Sekar Handayani Sihotang, Donald Harris Sintia Julia Siska Andriani Siti Mardiah Siti Mardiah, Siti Siti Patimah Siti Ulfa Nabila Suci M.Hum SH Hartati Suherman Suherman Suherman Suherman, Suherman Supardi, Novitasari Supriadi Supriadi Susianto, Yuni Syamsul Huda Syamsul Huda Syarifah Sri Rahayu Tama, Arfani Manda Tama, Arfani Manda Tri Nurhardina Ulfa Iqoh Wahyu Kusumaningtyas Wahyu Kusumaningtyas Wawan Gunawan Yasinta Rahmawati Yuberti Yuli Yanti Yulia Monica Yulina, Rikka Yulistia Devi Yulistiana Yulistiana Yuni Susianto

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